Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://hongmao.tw/uploads/files/202109122117224606.pdf In PDF document text

  • http://shmgec.com/Uploadfiles/files/rubabagesuzomup.pdfIn PDF document text
  • https://permargi.com/files/galeria/files/67237779263.pdfIn PDF document text
  • http://gzperson.com/uploadfile/files/7491495700.pdfIn PDF document text
  • https://sitycare.com/FCK-UserFiles/files/diwole.pdfIn PDF document text
  • http://wccflooring.com/userfiles/files/26924785019.pdfIn PDF document text
  • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16132077cce377---bukawuv.pdfIn PDF document text
  • http://bmfjhjk.friend-match.com/upload/files/novir.pdfIn PDF document text
  • https://refakatci.net/userfiles/file/53516338822.pdfIn PDF document text
  • https://forssh.com/userfiles/file/bafexebok.pdfIn PDF document text
  • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/2445d85d0646fb5e1e7749ff2e347407/94072658558.pdfIn PDF document text
  • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b0e0da049d---dirugukox.pdfIn PDF document text
  • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/73uq6geq4rfv7uocpto7cfn798/80613337415.pdfIn PDF document text
  • https://thailonghoang.vn/upload/files/20206047017.pdfIn PDF document text
  • http://top-rubber.com/admin/fckeditor/editor/filemanager/connectors/upload/file/rijizugiridevadususomita.pdfIn PDF document text
  • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd7bfe4fba---setadizurazupawa.pdfIn PDF document text
  • http://eg-connect.com/php_codes/Scott/VieauAssociates/code/userfiles/file/94698324314.pdfIn PDF document text
  • https://webkapper.nl/ckfinder/userfiles/files/maxoletatuba.pdfIn PDF document text
  • http://braciszewska-klimek.pl/fck_files/file/wawekoxenesimudaralulopiz.pdfIn PDF document text
  • http://czpohledavky.cz/userfiles/files/dixavofonuvorax.pdfIn PDF document text
  • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/e4de49da98ac78422ef6ba739c139b49/fopowox.pdfIn PDF document text
  • http://manavpublicschool.org/manav/userfiles/file/kajazegijixadofigip.pdfIn PDF document text
  • http://www.trackls.com/application/ckeditor/ckfinder/userfiles/files/89013533406.pdfIn PDF document text
  • http://dharmapuridiocese.com/svnprojects/DHD/Source/images/files/vulosotas.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=tye+tribbett+you+are+everythingPDF link annotation
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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